Results 11 to 20 of about 591 (158)

Variation in flower size and shape of Impatiens capensis is correlated with urbanization in Montreal, Canada. [PDF]

Ecol Evol, 2023
We found that the flower shape and size of the jewelweed is correlated with urbanization. Urban populations tend to have smaller flowers and sepals with shorter spurs. These changes are partly explained by vegetation cover and by variations in pollinator communities.
Faure J, Volz V, Joly S.
europepmc   +2 more sources

Multi-method approach to assessing the floral-visiting insect assemblage of rare, abophilous plant Baccharis vanessae in Southern California. [PDF]

Ecol Evol
In this study, we compare the accuracy of two different methods of monitoring to assess the insect assemblage of Encinitas Baccharis (Baccharis vanessae): focal observations and video recordings from camera traps. The insect vectors identified were as expected given B. vanessae pollination syndrome.
Simokat C, Ferguson EL, Keatly J, Smith T, Lorence M, O'Hara J.   +5 more
europepmc   +2 more sources

Seed Production and Pollinator Dependence in Native Wildflowers: Guiding Species Selection for Conservation Plantings. [PDF]

Ecol Evol
We investigated the pollination biology of eight native wildflower species in the southeastern U.S. to assess their dependence on insect pollinators and potential for self‐pollination. Most species showed significantly higher seed production and weight when open‐pollinated, indicating strong pollinator dependence, though some could reproduce without ...
Abbate AP, Campbell JW, Cuminale AW, West NM, Williams GR.   +4 more
europepmc   +2 more sources

Pathways for accidental biocontrol: The human-mediated dispersal of insect predators and parasitoids. [PDF]

Ecol Appl
Abstract Introductions of insect predators and parasitoids for biological control are a key method for pest management. Yet in recent decades, biological control has become more strictly regulated and less frequent. Conversely, the rate of unintentional insect introductions through human activities is rising.
Fenn-Moltu G, Liebhold AM, Weber DC, Bertelsmeier C.   +3 more
europepmc   +2 more sources

The urban island: climatic suitability of Linepithema humile (Hymenoptera: Formicidae) and the role of cities in the invasion of the Western Palearctic. [PDF]

Integr Zool
Urban environments provide favorable conditions for the introduction and spread of nonnative and invasive species like the Argentine ant, which exploit ecological and climatic homogenization in cities to overcome natural barriers. Monitoring the expansion of such species can be achieved through potential distribution models, which in this study ...
López-Collar D, Cabrero-Sañudo FJ, Gil-Tapetado D.   +2 more
europepmc   +2 more sources

Response of pollinator taxa to fire is consistent with historic fire regimes in the Sierra Nevada and mediated through floral richness†

Ecology and Evolution, Volume 13, Issue 12, December 2023., 2023
Many dry forests in the western United States are experiencing wildfires that burn outside the natural range of variation in extent and severity. We investigated the impacts of burn severity, habitat, and floral resources on pollinator abundance in conifer forest (upland) and meadow habitats in a megafire in the Sierra Nevada, California.
Gina L. Tarbill, Angela M. White, Rahel Sollmann   +2 more
wiley   +1 more source

Asymmetric responses by bees and aculeate wasps to dune stabilisation across the southern Canadian prairies

Insect Conservation and Diversity, Volume 16, Issue 5, Page 626-637, September 2023., 2023
We analysed the effects of vegetative stabilisation of threatened inland sand dunes on wild bees and stinging wasps (Hymenoptera: Aculeata) at 13 sites across the southern Canadian prairies. Results showed that stabilisation threatens psammophilous species and changes the structure of dune‐inhabiting aculeate communities, with asymmetric responses ...
Thomas M. Onuferko, Matthias Buck, Jason Gibbs, Paul C. Sokoloff   +3 more
wiley   +1 more source

Müllerian mimicry among bees and wasps: a review of current knowledge and future avenues of research

Biological Reviews, Volume 98, Issue 4, Page 1310-1328, August 2023., 2023
ABSTRACT Many bees and stinging wasps, or aculeates, exhibit striking colour patterns or conspicuous coloration, such as black and yellow stripes. Such coloration is often interpreted as an aposematic signal advertising aculeate defences: the venomous sting.
Paul Chatelain, Marianne Elias, Colin Fontaine, Claire Villemant, Isabelle Dajoz, Adrien Perrard   +5 more
wiley   +1 more source

The best of two worlds: ecology and evolution of ambophilous plants

Biological Reviews, Volume 98, Issue 2, Page 391-420, April 2023., 2023
ABSTRACT Ambophily, the mixed mode of wind and insect pollination is still poorly understood, even though it has been known to science for over 130 years. While its presence has been repeatedly inferred, experimental data remain regrettably rare. No specific suite of morphological or ecological characteristics has yet been identified for ambophilous ...
Stefan Abrahamczyk, Jan‐Hendrik Struck, Maximilian Weigend   +2 more
wiley   +1 more source

Adding to the fauna of digger wasps (Hymenoptera: Apoidea: Sphecidae) from Kerman province, Iran

Journal of Crop Protection, 2021
New data on the distribution of eight Sphecid wasps species (Hymenoptera: Apoidea: Sphecidae) collected from different localities in southern areas of Kerman province (southeast Iran) are presented.
Zahra Ghaderipour, Mohammad Khayrandish, Seyed Massoud Madjdzadeh, Ebrahim Ebrahimi, Christian Schmid-Egger   +4 more
doaj